You see it used in for loop statements, but it's legal syntax anywhere. What uses have you found for it elsewhere, if any?

With reference to Comma-Separated return arguments in C function [duplicate],x=x+2,x+1;will be evaluated asx=x+2; However, in case of the following code#include<stdlib.h>#include<...

#include<stdio.h> int main(void) { int a; a = (1, 2), 3; printf("%d", a); return 0;}output: 2Can any one explain how output is 2?

Consider:for (auto i = 0; i < g.size(); ++i) for (auto j = 0; j < g.size(); ++j) if (g[i][j] == 0) dfs(g, i, j), ++regions;return regions;I don't like one line code. What does the code ...

Prog 1: #include<stdio.h> int main() { int i=0; while(i<=8,i++); printf("%d",i); return 0; }Prog 2:#include<stdio.h> int main(){ int i=0; while(i++,i&...

While completing a C programming test, I was given a question regarding the expected output from a function which seem to return two values. It was structured as follows:int multi_return_args(void)...

int main(void){ int a=0, b=20; char x=1, y=10; if(a,b,x,y) printf("bye"); return 0;}How does "if" condition in the above code work work?Would the value of "y" be only considered by "if"...

Possible Duplicate: What does the ',' operator do in C? Ok I had an interview today and they asked me what should be the output of the following code#include<stdio.h>int main (){...

int main(){ switch(1,2) { case 1:printf("1");break; case 2:printf("2");break; default: printf("error");break; }}Is this valid in c?I thought it shouldn't be , but when ...

#include<stdio.h>#define POOLNAME_FMT "Hello"void main() { printf((POOLNAME_FMT "Cannot allocate %d bytes" POOLNAME_FMT "in pool not enough memory",5));}Why does it give segmentation ...

I was reading some material about errors that should be avoided when writing C programs and I came across the following code:#include <stdio.h>void foo(int param){ printf("foo is called\n"...

I can't understand how this works and why it produces the following output.int main(){ int i=0; int a=5; int x=0; for(i=0; i<5; x=(i++,a++)) { printf("i=%d a=%d x=%...

main(){ int i=0,j=0; while(i<5,j<10) { i++; j++; } printf("%d,%d,",i,j);}output: 10,10int main(){ int x=2,y=2; while(x<=5,y<=3) ...

I'm studying C and I came across the code below. The printed results are always the same for all the printf calls. What does [x,y] mean? A memory address or something else?printf("%d ", array[0,0]...

I have written a C program where I declared a function reverse(int i). When I compile and run the program, it runs fine despite passing two arguments like this reverse((i++, i)). Why doesn't this ...